I can't imagine buying bulk ammo for a 7mm mag because I can't imagine shooting that caliber for more than 5 shots at a sitting. For hunting, the two most important considerations for a clean kill are bullet placement and terminal performance of the bullet. Spend some time with your rifle at the range and find out which premium ammunition that it likes the best, then buy 100 rounds. Spending $1.75 for a round of excellent performing ammo versus a $1 for bulk will seem like a great investment when the buck of a lifetime is in the scope!